Liquid-soap dispenser



June 21,1927. 1,633,448

W. N. LURCOTT LIQUID SOAP DISPENSER ,l Il. 1, 11111111 ,1. v lh l wl'rNEssEs ATTORNEYS INVENTOR Y Patented June 21, 1927.

UNITED STATES I*1,633,448 PATENT, oFFicE.

WINFRED N. LURCOT'I', OF ELIZABETH, NEW JERSEY, ASSIGNOR TO MOORE BROS. C0., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

LIQUID-SOAP DISPENSER.

Application filed September 17, 1926. Serial No. 136,126.

This vinvention relates tothe class of dispensing-devices, and relates more particularly to-dispensing devices capable of being operated to discharge predetermined quantities of liquid soap repeatedly or in rapid succession. K

The principal object of the present invention is the production of a dispensing device of the indicated character embodying improved features of construction rendering the device more thoroughly eicient for the intended purposes.

Another object of the invention is the production of a dispensing device of the indicated character embodying structural features which permits the parts to be repeatedly assembled and disassembled for carrying out cleaning operations and which will render the device effectual against leakage.

The nature of the invention and its distinguishing features and advantages will appear when the following specification isread 1n connection with the accompanying drawing, in which- Figure 1 is a central sectional View through the dispensing device of the present invention.

Fig. 2 is a sectional elevation, the section being taken on the line 2 2 of Fig. 1.

Fig. 3 is a sectional view through the casing and its plunger, the plunger being shown in its discharging position. y

Fig. 4 is a perspective view of the plunger.

Referring' now ymore particularly to the several views of the drawing it will be apparent that the device includes a. casing 10 formed with a cylindrical bore 11 and having an inlet 12 and an outlet 13 communicating' with the bore 11. One end of the casing 10 has formed thereon an attaching flange 14 having' openings therein for the reception of suitable fastening elements 15 for effecting the attachment of the device. The casing 10 is also formed with a neck 16 having a threaded portion 17 which accommodates the threaded portion 18 of a reservoir or receptacle 19 adapted to contain a quantity of liquid soap. The receptacle 19 is provided with a filling cap 2O. The liquid soap in the receptacle 19 passes through the inlet 12 into the bore 11 at certain times.` A plunger 21 is arranged for movement in the bore 11 of the casing 10. The plunger 21 is provided with a passageway 22 which extends centrally through the plunger diametrically thereof so as to open through the opposite sides. The plunger 21 is also reduced in Vcross sectional size as at 23 and 24. By being reduced at two points there'is provided the comparatively large portion 25 which serves as a valve member. The plunger 21.is also reduced in cross sectional size to provide a shoulder 26 and a manipulating portion 27 having a knob 28. The open end of the casing 10 is externally threaded to receive a threaded cap `nut 29 through which the portion y27' extends, there being a suitable gasket 30 arranged-in the cap to obtain a tight joint between the cap 29- and the threaded end of the casing 10. A spring 3l is employed within the borevll. rllhe said spring 31 is arranged between the end wall of the bore 11 and a block 32 which is held against the inner end of the plunger 21. The block 32 closes one end of the passageway 22, and with the reduced portions 24 and the wall of the bore forms a chamber. The spring 31 constantly acts on the block 32 and has anormal tendency to yieldably maintain the plunger 21 in a normal position shown in Fig.' 1. A quantity of soap finds its way behind the block 32 at the spring end thereof. The inlet 12 and outlet 13 are substantially in a vertical plane, whereas, the passageway 22 is maintained substantially in a horizontal plane with respect to the transverse axis of the bore 11. In order to maintain'the relationship of the passageway 22 with respect to the disposition of the inlet 12 and outlet 13, there is provided a member 33 which extends diametrically of the bore 11 secured to the opposite side portions of the casing 10 near the open end thereof. The said member 33 Utl ber 33 prevents the plunger 21 from having turning movement, and limits the inward movement of the plunger 21 so as to insure the registration of the reduced portion 23 of the plunger with the outlet 13, as shown most clearly inFig. 3.

From the foregoing it willbe apparent, that when the plunger 21 is in its normal position, as shown in Fig. 1, a quantity of liquid soap will be allowed to pass through the inlet l2, around the reduced portion 24 and into a portion of the passageway 22. At this particular time the valve portion 25 prevents the flow of liquid through the outlet d cate with the inlet 12 13. When they plunger 21 has moved infwardly against the action of' the spring 31 until the end wall of the passageway encounters the member 33 he reduced portion 23. will he in registration with tl e outlet 13,` and as a consequence the quantity of liquid soap having previously entered the passageway and the space around the reduced portion 24 will be discharged through the outlet The discharge is caused by pressure exerted by the soap displaced from behind the block 32. Meanwhile, the valve portion 25 will prevent the tiow off liquid soap through the inlet 12. The spring' 31 serves to return th-e plunger to its normal' position. The plunger 21 may be reoiprocated rapidly, which will resul-'t in quantities oiliquid soap being rapidly discharged through the outlet 13. The. valve portion 25 constitutes a means for controllingY the inlet 12' and outlet 131 to alternately open and elo-se the same inl the reciproca-tion of the plunger, whereas, the passageway 22 by virtue oi? the reduced portions 23 and 24, will alternately communi-v and outlet 18 in the reciprocation of' the plunger 21. The shoulder 26- limits the outward movement oat the plunge-r 21 and insures the proper disposition oi the reduced portion 24E ot the plunger with respect tothe inlet 12.

The plunger 21 will be produced 'from metal having a certain degree of sprin-giness, and due to the fact that it is split longitudinally toV provide the passageway 22, the devices. will be caused toimpinge againstk the wall of the here 11 and thus set up a tight lit' and therefore prevent leakage.

l; claim: l

n. liquid dispensing` device comprising a casingv having an inlet and an outlet, a liquid receptacle in communication with said inlet, a plunger arrangedl 'for movement in said casing, said plunger having Vmean-s for controlling open` and close the inlet and outlet in the movement of said plunger, said plunger be# irg biiurcated to provide a passageway be tween the urcations, said plunger being reduced in its lengt-h at two points so that the passageway will alternately 'communicate with th-e inlet and the outlet in the .Inovement ot' tlfiapl'uiwer in opposite directions,

said urcations having a normal tendency tol itiex away from each other soy as to inmpinge against the wall of thel casing', and means:

exten-dingbetween said Jurcations from the wall of the tovprevent the plungertrom` turning andfor limiting the longitudisaid inlet and outlet to alternately y nal movement of the plunger in one direc tion.

winnaar Nonron Lniaoofrr: 

